AS 2755.2 MEASUREMENT OF FLAME SPREAD PROPERTIES OF VERTICALLY ORIENTED SPECIMENS

1 SCOPE AND APPLICATION.

This standard sets out a method for the measurement of flame spread properties of vertically oriented textile fabrics intended for apparel, curtains and draperies in the form of
single- or multi-component (coated, quilted, multilayered,sandwich construction and similar combinations)fabrics.

NOTE: This standard takes into account the development of ISO 6941 and is technically identical with that standard. The Explanatory Report of the development of ISO 6941 is given in
the Annex to this standard.

2 REFERENCED DOCUMENT.

The following standard is referred to in this standard:

AS 2001.1 Methods of Test for Textiles—Conditioning
Procedures

3 DEFINITIONS. For the purpose of this standard,the following definitions apply:

3.1 Afterflame—persistence of flaming of a material, under specified test conditions, after removal of the ignition source.

3.2 Afterflame time—the length of time for which the material continues to flame, under specified test conditions, after removal of the ignition source. (Also
called Duration of flame.)

3.3 Afterglow—persistence of glowing of a material,under specified test conditions, after cessation of flaming or, if no flaming occurs, after removal of the
ignition source.

3.4 Afterglow time—the time for which a material continues to glow, under specified test conditions,after cessation of flaming, or after removal of the
ignition source. (Also called Duration of afterglow.)

3.5 Flame spread time—the time taken by a flame on a burning material to travel a specified distance under specified test conditions.

4 PRINCIPLE.

A defined ignition flame from a specified burner is applied for a defined period of time to textile specimens which are vertically oriented. The flame spread time is the time in seconds for a flame to travel between marker threads located at defined distances. Other properties relatingto flame spread may also be observed, measured and recorded.

NOTE: Attention is drawn to Appendix B regarding quali ty of experimental techniques.